TBU-PL050-100-WH

Overview

The Bourns TBU-PL050-100-WH is a board-mount surge protector from the TBU PL series, designed for dual 50-ohm bidirectional applications. It features an internal switch technology providing overcurrent and overvoltage protection. The device operates within a voltage range of 300V to 500V clamp, with a rated current of 100 mA. It utilizes a 3-SMD (6.5x4 mm) surface mount package and functions between -55°C and +125°C.

Feature Summary

• Provides bidirectional surge protection for dual 50-ohm lines
• Utilizes internal switch technology for transient blocking
• Offers combined overcurrent and overvoltage suppression

Applications

• Voice and VoIP SLIC protection
• RS-485 circuit protection
• RS-422 interface protection

Procurement Notes

This component is officially obsolete and no longer manufactured by Bourns Inc. Procurement should focus on verified surplus stock or authorized distributors holding remaining inventory. Designers must transition to alternative solutions immediately as production supply is terminated. Verify part authenticity carefully when sourcing from secondary markets due to end-of-life status.

Selection Notes

Select this part only for legacy system maintenance or repair where original specifications are mandatory. For new designs, choose active alternatives from the TBU PL series that match required voltage and current ratings. Ensure the replacement supports dual 50-ohm bidirectional signaling and fits the existing 3-SMD footprint constraints without redesigning the PCB layout.

Part Context

Part of the TBU PL series, which specializes in dual 50-ohm bidirectional devices. This series integrates voltage and current triggering capabilities for enhanced protection. The PL designation indicates specific pulse voltage and trigger current configurations distinct from other TBU families like CA or DT.

Replacement Considerations

TBU-PL060-100-WH is a confirmed public substitute for this obsolete component.